Following the appearance of the Concept M5 in April, BMW has released details of the new M5 that is expected to go on sale later this year. The fifth generation of BMW’s flagship high-performance saloon will be the first vehicle to feature the newly developed BMW M V8 engine that propels the car from 0-100 km/h (62 mph) in 4.4 seconds, 0-200 km/h (124 mph) in 13 seconds, before topping out at 250 km/h (155 mph) or 305 km/h (190 mph) with the optional M Driver’s Package. But alongside the impressive performance stats, BMW is also touting the improved fuel efficiency of the new M5.